Profile: Controlled Heat Treatments Ltd. specializes in high volume heat treatment and shot blasting services. We are an ISO 9001:2008 certified company. We can heat treat a wide range of materials including carbon & alloy steel, ductile & gray iron, stainless steel, and non-ferrous metals. We offer forgings, castings, fabrications, machined parts, manipulated tubes, pressure vessels, profiles/flame cut blanks, sections, and rods/wires/bars/coils.